/* 测试字符设备和块设备文件 */
#include "apue.h"
#ifdef SOLARIS
#include <sys/mkdev.h>
#endif
#include <sys/stat.h>

int main(int argc, char *argv[])
{
    int i;
    struct stat buf;

    for(i = 1; i < argc; i++){
        printf("%s: ", argv[i]);
        if (stat(argv[i], &buf) < 0){
            err_ret("stat error");
            continue;
        }

        printf("dev = %d/%d", major(buf.st_dev), minor(buf.st_dev));

        if (S_ISCHR(buf.st_mode) || S_ISBLK(buf.st_mode)){
            printf("(%s) rdev = %d/%d",
                   (S_ISCHR(buf.st_mode)) ? "character" : "block",
                  major(buf.st_rdev), minor(buf.st_rdev) 
                    );
            printf("\n");
        }
    }
    return 0;
}

